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Rectangular black HP toner cartridge in sealed packaging

HP

HP Q5942X 42X High Yield Toner Cartridge Black 20000 Pages

SKU CH-H1QG-KZ4HW MPN Q5942X

High-yield black toner cartridge prints approximately 20000 pages for HP LaserJet 4240, 4250 and 4350 series printers

  • Cartridges includedSingle Pack
  • Ink or toner colorBlack
  • Estimated page yield20000 Pages
  • Operating humidity range10 to 80% RH
  • Storage humidity range10 to 90% RH
  • Operating temperature range50 to 90.5 °F (10 to 32.5 °C)

Model Q5942X

  • High-yield black toner prints up to 20000 pages
  • Genuine HP cartridge ensures sharp text and consistent results
  • Works with HP LaserJet 4240, 4250 and 4350 series
  • Operates reliably from 10 to 80 percent humidity
  • Stores safely between -4 and 104 degrees Fahrenheit

HP 42X High-Yield Toner

The HP Q5942X is a genuine high-yield black toner cartridge designed for HP LaserJet 4240, 4250, and 4350 series printers. It suits offices needing consistent, professional output over long print runs. This single-pack cartridge replaces the standard 42A model.

Practical Limits

The cartridge operates reliably between 50 and 90.5°F with humidity from 10 to 80% RH. Storage conditions extend from -4 to 104°F and 10 to 90% RH. Performance outside these ranges is not supported.

Page Yield

Approximate yield is 20000 pages per cartridge. Buyers who need a lower upfront cost per cartridge or who print fewer than a few thousand pages per year may prefer the standard-capacity alternative.

How it compares

Measured against everything we stock in OEM Laser Toner, at today’s prices. Recalculated every night.

Price $275.99
Pricier than about 85% of the 3,670 comparable items (median $112.99).

Specifications

Product
Brand nameHP
Model nameHP 42X (Q5942X)
Ink or toner colorBlack
Performance
Estimated page yield20000 Pages
Size & build
Shipping weight3.12 kg
Package size391 × 320 × 196 mm
Compatibility
Replacement forHP 42A (Q5942A)
For use withHP LaserJet 4240, 4250, 4350 Series
In the box
Cartridges includedSingle Pack
Environment & compliance
Operating humidity range10 to 80% RH
Storage humidity range10 to 90% RH
Operating temperature range50 to 90.5 °F (10 to 32.5 °C)
Storage temperature range-4 to 104 °F (-20 to 40 °C)

Other versions of this model

1 more in the same range

Questions about this item

Should I choose the 42X high-yield or the 42A standard cartridge?

The 42X yields approximately 20000 pages, while the 42A replacement model offers a lower yield; choose 42X for higher volume printing on LaserJet 4240, 4250 or 4350 series.

What does the 20000-page yield mean for daily office use?

At five percent coverage the cartridge prints roughly 20000 pages; actual output varies with page density, duplex settings and environmental conditions such as 10 to 80% RH operating humidity.

Which printer models accept the Q5942X and does the cartridge interface limit performance?

The cartridge fits HP LaserJet 4240, 4250 and 4350 series; it uses the native LaserJet interface so print speed and quality are governed by the printer engine, not the cartridge.

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